H3C S5500-SI Series, Operation Manual

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To do… Use the command… Remarks
Enter Ethernet
interface view interface interface-type
interface-number Enter
Ethernet
interface
view or port
group view
Enter port
group view
port-group manual port-group-name
Required
Use either command.
Configure CDP-compatible
LLDP to operate in TxRx
mode
lldp compliance admin-status cdp
txrx
Required
By default,
CDP-compatible LLDP
operates in disable mode.
As the maximum TTL allowed by CDP is 255 seconds, ensure that the product of the TTL multiplier and
the LLDPDU transmit interval is less than 255 seconds for CDP-compatible LLDP to work properly with
Cisco IP phones.
Configuring LLDP Trapping
LLDP trapping is used to notify the network management system (NMS) of events such as new
neighboring devices detected and link malfunctions.
To prevent excessive LLDP traps from being sent when topology is unstable, you can set a minimum
trap sending interval for LLDP.
Follow these steps to configure LLDP trapping:
To do… Use the command… Remarks
Enter system view system-view
—
Enter Ethernet
interface view interface interface-type
interface-number Enter
Ethernet
interface
view or port
group view
Enter port
group view
port-group manual port-group-name
Required
Use either command.
Enable LLDP trap sending
lldp notification remote-change
enable
Required
Disabled by default
Quit to system view quit
—
Set the interval to send LLDP
traps lldp timer notification-interval
interval
Optional
5 seconds by default